CN117629741A - Characterization method for hydrogen embrittlement sensitivity parameter of hydrogen energy storage and transportation equipment material - Google Patents
Characterization method for hydrogen embrittlement sensitivity parameter of hydrogen energy storage and transportation equipment material Download PDFInfo
- Publication number
- CN117629741A CN117629741A CN202311353682.XA CN202311353682A CN117629741A CN 117629741 A CN117629741 A CN 117629741A CN 202311353682 A CN202311353682 A CN 202311353682A CN 117629741 A CN117629741 A CN 117629741A
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- sample
- energy storage
- transportation equipment
- embrittlement sensitivity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000001257 hydrogen Substances 0.000 title claims abstract description 126
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 126
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 124
- 239000000463 material Substances 0.000 title claims abstract description 53
- 230000035945 sensitivity Effects 0.000 title claims abstract description 44
- 238000004146 energy storage Methods 0.000 title claims abstract description 35
- 238000012512 characterization method Methods 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 claims abstract description 30
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052786 argon Inorganic materials 0.000 claims abstract description 5
- 239000000523 sample Substances 0.000 claims description 55
- 238000000034 method Methods 0.000 claims description 35
- 238000013461 design Methods 0.000 claims description 21
- 230000009467 reduction Effects 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 9
- 238000009864 tensile test Methods 0.000 claims description 7
- 239000012298 atmosphere Substances 0.000 claims description 6
- 230000014759 maintenance of location Effects 0.000 claims description 6
- 239000012300 argon atmosphere Substances 0.000 claims description 2
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 2
- 238000010926 purge Methods 0.000 claims 2
- 239000011232 storage material Substances 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 description 10
- 238000010998 test method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 description 1
- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0236—Other environments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0688—Time or frequency
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention belongs to the technical field of hydrogen storage materials, and particularly relates to a characterization method for hydrogen embrittlement sensitivity parameters of a hydrogen energy storage and transportation equipment material. According to the service characteristics of hydrogen energy storage and transportation equipment in a hydrogen environment, firstly, the material is carried for a certain time in the hydrogen environment, the carrying stress level is equivalent to the actual service stress level of the material, the environment temperature and the hydrogen pressure are the same as the actual service temperature and the hydrogen pressure of the material during carrying, the carrying time and the standard are slowly stretched to be the same as the breaking time, the elongation after breaking, the area shrinkage and the breaking energy are obtained, and the hydrogen embrittlement sensitivity characterization parameters of the material of the hydrogen energy storage and transportation equipment are obtained by comparing the material with test results in a nitrogen environment or an argon environment.
Description
Technical Field
The invention belongs to the technical field of hydrogen storage materials, and particularly relates to a characterization method for hydrogen embrittlement sensitivity parameters of a hydrogen energy storage and transportation equipment material.
Background
The hydrogen energy has the advantages of various sources, cleanness, environmental protection, storability, reproducibility and the like, is one of the most promising energy sources at present, and has wide application in the fields of aviation, power generation, construction, road traffic and the like. The hydrogen energy industry chain comprises hydrogen production, hydrogen storage, hydrogen transportation, hydrogenation and hydrogen utilization, wherein the hydrogen energy storage and transportation is a key link for connecting the upstream and downstream of the industry chain. At present, the hydrogen energy storage and transportation mainly comprises three modes of gas storage and transportation, liquid storage and transportation and solid storage and transportation, wherein the high-pressure gas storage and transportation is the main hydrogen energy storage and transportation mode at present due to the advantages of simple equipment structure, high hydrogen charging and discharging speed, wide applicable temperature range and the like.
To realize safe and economical storage and transportation of hydrogen energy, the safety problem of hydrogen energy storage and transportation equipment must be solved first. Once the hydrogen energy storage and transportation equipment fails, accidents such as leakage, combustion, explosion and the like can occur, so that serious casualties and property loss are caused, and the safety problem is not neglected. In recent years, many explosion accidents related to hydrogen storage and transportation equipment occur in the united states, korea, norway, and the like. Therefore, it is needed to define the failure mode and damage mechanism of the hydrogen energy storage and transportation equipment and define the performance degradation rule of the material in the hydrogen environment. Hydrogen embrittlement is one of potential failure modes of hydrogen energy storage and transportation equipment, and a standard slow tensile test method is generally adopted at present for evaluating the hydrogen embrittlement sensitivity degree of a material in a hydrogen environment. However, for hydrogen energy storage and transportation equipment, the test method has obvious defects: in the process of carrying out a slow tensile test in a hydrogen medium environment, when a sample approaches or reaches a material yield strain value, the material is contacted with hydrogen for a long time, and at the moment, the surface of the material has obvious plastic deformation and generates a large number of dislocation; at the same time, dislocations act as hydrogen traps to promote hydrogen into the material. In practice, however, the stress levels to which the hydrogen energy storage and transportation equipment is subjected are typically in the elastic stress range and well below the yield stress value of the material.
Therefore, the hydrogen embrittlement sensitivity of the materials of the hydrogen energy storage and transportation equipment cannot be illustrated by adopting the standard slow tensile test results, and a method for determining the hydrogen embrittlement sensitivity characterization parameters suitable for the hydrogen energy storage and transportation equipment is required to be developed according to the service condition characteristics.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a characterization method for hydrogen embrittlement sensitivity parameters of hydrogen energy storage and transportation equipment materials according to the characteristic development of service conditions.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a characterization method for hydrogen embrittlement sensitivity parameters of hydrogen energy storage and transportation equipment materials comprises the following specific steps:
s1, placing a sample in a hydrogen environment, and adjusting the temperature and the pressure to enable the numerical values of the test temperature and the test pressure to respectively reach the design temperature T and the design pressure P of the sample;
s2, at a constant loading rate v 1 Loading the sample until the sample breaks, and recording the test time t from zero loading to breaking of the sample s ；
S3, taking a plurality of identical samples, placing the samples in a hydrogen environment, and adjusting the temperature and the pressure to ensure that the numerical values of the test temperature and the test pressure respectively reach the design temperature T and the design pressure P of the samples; and then under this environment at a constant loading rate v 1 Loading each sample separately to a stress level sigma of the sample material h Record sample loading from zero to sigma h Test time t of (2) i The method comprises the steps of carrying out a first treatment on the surface of the Then carrying out load retention, wherein the load retention time is t h The method comprises the steps of carrying out a first treatment on the surface of the After the end of the load-keeping, at the loading rate v 2 Rapidly breaking the slow tensile sample, thereby obtaining a stress-strain curve of the whole test process;
s4, measuring the elongation delta after fracture of each sample after fracture in the step S3 H And area reduction rate A H Calculating the areas of the areas surrounded by the curve, the stress axis and the strain axis according to the stress-strain curve obtained in the step S2 to obtain the fracture energy W H The method comprises the steps of carrying out a first treatment on the surface of the And respectively calculating the average elongation after break delta of a plurality of samples H，avg Average area reduction A H，avg Average breaking energy W H，avg ；
S5, using the average elongation after break delta obtained from the above sample H，avg 、δ N，avg Average area reduction A H，avg 、A N，avg Average breaking energy W H，avg 、W N，avg Three hydrogen embrittlement sensitivity characterization parameters I of the sample under the hydrogen environment are calculated HE，δ 、I HE，A And I HE，W ；
S6: three hydrogen embrittlement sensitivity characterization parameters I calculated in step S5 HE，δ 、I HE，A And I HE，W According to the principle of conservation, respectively taking I HE，δ 、I HE，A And I HE，W The maximum value of (2) is used as a characteristic parameter for evaluating the hydrogen embrittlement sensitivity of the hydrogen energy storage and transportation equipment material.
Preferably, in step S5, three hydrogen embrittlement sensitivity characterizing parameters I HE，δ 、I HE，A And I HE，W The formulas of (a) are as follows:
preferably, in step S6, the formula of the hydrogen embrittlement sensitivity characterization parameter taking the maximum value is as follows:
I HE ＝max{I HE，δ ，I HE，A ，I HE，W }。
preferably, in step S3, the hydrogen atmosphere is replaced by a nitrogen atmosphere or an argon atmosphere, and the nitrogen or argon is purged from the atmosphere box before the sample is placed in the atmosphere box.
Specific: taking a plurality of identical samples, and mixing the samplesPlacing the sample in a nitrogen environment or an argon environment, and adjusting the temperature and the pressure to ensure that the numerical values of the test temperature and the test pressure respectively reach the design temperature T and the design pressure P of the sample; and then under this environment at a constant loading rate v 1 Loading each sample separately to a stress level sigma of the sample material h Record sample loading from zero to sigma h Test time t of (2) i The method comprises the steps of carrying out a first treatment on the surface of the Then carrying out load retention, wherein the load retention time is t h The method comprises the steps of carrying out a first treatment on the surface of the After the end of the load-keeping, at the loading rate v 2 Rapidly breaking the slow tensile sample, thereby obtaining a stress-strain curve of the whole test process;
measurement of the elongation after break delta of each sample after breaking H And area reduction rate A H Calculating the areas of the areas surrounded by the curve, the stress axis and the strain axis according to the stress-strain curve obtained in the step S2 to obtain the fracture energy W H The method comprises the steps of carrying out a first treatment on the surface of the And respectively calculating the average elongation after break delta of a plurality of samples H，avg Average area reduction A H，avg Average breaking energy W H，avg ；
Using the average elongation after break delta obtained from the above specimen H，avg 、δ N，avg Average area reduction A H，avg 、A N，avg Average breaking energy W H，avg 、W N，avg Three hydrogen embrittlement sensitivity characterization parameters I of the sample under the hydrogen environment are calculated HE，δ 、I HE，A And I HE，W The method comprises the steps of carrying out a first treatment on the surface of the Respectively taking I according to the principle of conservation HE，δ 、I HE，A And I HE，W The maximum value of (2) is used as a characteristic parameter for evaluating the hydrogen embrittlement sensitivity of the hydrogen energy storage and transportation equipment material.
Preferably, in step S1, the design temperature T and the design pressure P of the sample are determined first, then the sample is mounted on a slow tensile testing machine with an environmental chamber, and after hydrogen is filled, the test environment is adjusted to the values of the design temperature T and the design pressure P.
Preferably, in step S2, the loading rate v 1 The value of (2) is 0 < v 1 ＜2×10 -5 s -1 。
Preferably, in step S3, the load-maintainingTime t h Equal to t s -t i 。
Preferably, in step S3, the loading rate v 2 The value of (2) is 0.001s -1 。
Preferably, the number of samples in step S3 is three or more.
Preferably, in step S3, before the sample is placed in the environmental chamber, the environmental chamber is purged with nitrogen and then with hydrogen.
The invention has the advantages that:
(1) According to the service characteristics of hydrogen energy storage and transportation equipment in a hydrogen environment, firstly, the material is carried for a certain time in the hydrogen environment, the carrying stress level is equivalent to the actual service stress level of the material, the environment temperature and the hydrogen pressure are the same as the actual service temperature and the hydrogen pressure of the material during carrying, the carrying time and the standard are slowly stretched to be the same as the breaking time, the elongation after breaking, the area shrinkage and the breaking energy are obtained, and the hydrogen embrittlement sensitivity characterization parameters of the material of the hydrogen energy storage and transportation equipment are obtained by comparing the material with test results in a nitrogen environment or an argon environment.
(2) In the standard slow tensile test process, most of the time (for example, for a material with an elongation of 0.02, the time accounts for 99%) is above the yield strength load, and the hydrogen embrittlement sensitivity characterization parameter of the obtained material reflects the influence of hydrogen on the mechanical properties of the material when the material is above the yield point, and cannot reflect the influence of hydrogen on the mechanical properties of the material when the material is below the yield point. In the test method adopted by the invention, the total test time is consistent with the standard slow tensile test time, and most of the test sample time is below the yield strength load (for example, the time accounts for more than 99% for a material with the elongation of 0.02), so that the obtained characteristic parameter of the hydrogen embrittlement sensitivity of the material can reflect the influence of hydrogen on the mechanical property of the material when the material is below the yield point. The material of the actual high-pressure hydrogen storage and transportation equipment is in service below the yield strength for a long time, so that the hydrogen embrittlement sensitivity characterization parameter obtained by the test method can reflect the hydrogen embrittlement sensitivity of the material of the high-pressure hydrogen storage and transportation equipment in the actual use state.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Fig. 2 is a graph of stress strain curves for a nitrogen environment and a hydrogen environment.
Detailed Description
The present invention will be further described in detail with reference to the drawings and examples, wherein all other examples, which are obtained by a person skilled in the art without making any inventive effort, are included in the scope of the present invention.
As shown in fig. 1-2, a method for characterizing hydrogen embrittlement sensitivity parameters of a material of hydrogen energy storage and transportation equipment comprises the following steps:
a. preparing 3 standard slow tensile samples, wherein the standard slow tensile samples are numbered #7- #9, the materials of the samples are 30CrMoIV, and the diameters of the samples and the length of the gauge length sections are measured by adopting a vernier caliper;
b. sample #7 was mounted on a slow tensile tester with an environmental chamber, the environmental chamber was purged 3 times with 99.999% pure nitrogen and 3 times with 99.999% pure hydrogen, then the environmental chamber temperature was controlled at 25 c, the design pressure was controlled at 1MPa, and the temperature was 6.6x10 × -7 s -1 The strain rate breaks the sample, records the load and displacement signals, and records the time required for the sample to stretch to fracture;
c. repeating test step b for samples #8 and #9 to obtain an average stress strain curve for samples #7- #9, such as curve C in fig. 2, and calculating the average value of yield strength, tensile strength, elongation at break, reduction of area, energy at break and tensile to break time, i.e., 48 hours, i.e., test results for samples #7- #9 are comparative examples of the invention;
d. preparing 6 samples with the same size as the step a, and adopting vernier calipers to measure the diameter of the samples and the length of a gauge length section, wherein the samples are numbered #1 to # 6;
e. sample #1 was mounted on a slow tensile tester with an environmental chamber, the environmental chamber was purged 3 times with 99.999% purity nitrogen and then with 99.999% purity hydrogen3 times, then the ambient box temperature was controlled at 25℃at 6.6X10 -7 s -1 The strain rate is stretched to the actual service stress level of 305.5MPa of the sample under the environment, the design pressure is controlled to be 1MPa, then the load is maintained for 48 hours, and finally the strain rate is controlled to be 0.001s -1 The test sample is rapidly broken at the speed, a stress-strain curve in the experimental process is recorded, and the yield strength, the tensile strength, the breaking elongation, the reduction of area and the breaking energy are calculated;
f. repeating the test step e on the #2 and #3 samples to obtain average stress strain curves of the #1 and #3 samples, such as a B curve in fig. 2, and calculating the average value of yield strength, tensile strength, elongation at break, reduction of area and energy at break;
g. sample #4 was mounted on a slow tensile tester with an environmental chamber, the chamber was purged 3 times with 99.999% purity nitrogen, then the chamber temperature was controlled at 25℃and 6.6X10 -7 s -1 Stretching to 305.5MPa, controlling the design pressure to 1MPa, maintaining for 48h, and maintaining for 0.001s -1 The test sample is rapidly broken at the speed, a stress-strain curve in the experimental process is recorded, and the yield strength, the tensile strength, the breaking elongation, the reduction of area and the breaking energy are calculated;
h. repeating the test step g for the #5 and #6 samples to obtain average stress strain curves of the #4 and #6 samples, such as the curve A in the figure 2, and calculating the average value of yield strength, tensile strength, elongation at break, reduction of area and energy at break;
i. calculating hydrogen embrittlement sensitivity characterization parameters
As can be seen from the above experimental results and FIG. 2, in the above method, the average delta of sample #4-6 N，avg 0.145, delta H，avg Average A for sample No. 0.141, #4-6 N，avg Average A for sample No. 0.57, #1-3 H，avg Average W for sample No. 0.52, #4-6 N，avg 94.35X 10 6 J/m 3 Average W of samples #1-3 H，avg 92.04 ×10 6 J/m 3 . Thus, a corresponding I can be obtained HE，δ 、I HE，A And I HE，W 0.028, 0.088 and 0.024 respectively, so that the hydrogen embrittlement sensitivity characterizing parameter obtained by the process of the invention is 0.088, whereas the hydrogen embrittlement sensitivity characterizing parameter obtained by the standard slow stretching process is 0.251. Therefore, the hydrogen embrittlement sensitivity characterization parameters obtained by the method and the standard slow stretching are greatly different, and the figure 2 can also show that the result under the standard slow stretching is obviously different from the result obtained by the method, namely, the standard slow stretching can overestimate the hydrogen embrittlement sensitivity of the material, and the determination method can reflect the hydrogen embrittlement sensitivity of the high-pressure hydrogen storage and transportation equipment material in the actual use state.
The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (10)
1. A characterization method for hydrogen embrittlement sensitivity parameters of hydrogen energy storage and transportation equipment materials is characterized by comprising the following specific steps:
s1, placing a sample in a hydrogen environment, and adjusting the temperature and the pressure to enable the numerical values of the test temperature and the test pressure to respectively reach the design temperature T and the design pressure P of the sample;
s2, at a constant loading rate v 1 Loading the sample until the sample breaks, and recording the test time t from zero loading to breaking of the sample s ；
S3, taking a plurality of identical samples, placing the samples in a hydrogen environment, and adjusting the temperature and the temperatureThe pressure enables the numerical values of the test temperature and the test pressure to respectively reach the design temperature T and the design pressure P of the sample; and then under this environment at a constant loading rate v 1 Loading each sample separately to a stress level sigma of the sample material h Record sample loading from zero to sigma h Test time t of (2) i The method comprises the steps of carrying out a first treatment on the surface of the Then carrying out load retention, wherein the load retention time is t h The method comprises the steps of carrying out a first treatment on the surface of the After the end of the load-keeping, at the loading rate v 2 Rapidly breaking the slow tensile sample, thereby obtaining a stress-strain curve of the whole test process;
s4, measuring the elongation delta after fracture of each sample after fracture in the step S3 H And area reduction rate A H Calculating the areas of the areas surrounded by the curve, the stress axis and the strain axis according to the stress-strain curve obtained in the step S2 to obtain the fracture energy W H The method comprises the steps of carrying out a first treatment on the surface of the And respectively calculating the average elongation after break delta of a plurality of samples H,avg Average area reduction A H,avg Average breaking energy W H,avg ；
S5, using the average elongation after break delta obtained from the above sample H,avg 、δ N,avg Average area reduction A H,avg 、A N,avg Average breaking energy W H,avg 、W N,avg Three hydrogen embrittlement sensitivity characterization parameters I of the sample under the hydrogen environment are calculated HE,δ 、I HE,A And I HE,W ；
S6: three hydrogen embrittlement sensitivity characterization parameters I calculated in step S5 HE,δ 、I HE,A And I HE,W According to the principle of conservation, respectively taking I HE,δ 、I HE,A And I HE,W The maximum value of (2) is used as a characteristic parameter for evaluating the hydrogen embrittlement sensitivity of the hydrogen energy storage and transportation equipment material.
2. The method for characterizing hydrogen embrittlement sensitivity parameters of a hydrogen energy storage and transportation equipment material according to claim 1, which is characterized by comprising the following steps: in step S5, three hydrogen embrittlement sensitivity characterization parameters I HE,δ 、I HE,A And I HE,W The formulas of (a) are as follows:
3. the method for characterizing hydrogen embrittlement sensitivity parameters of a hydrogen energy storage and transportation equipment material according to claim 1, which is characterized by comprising the following steps: in step S6, the formula of the hydrogen embrittlement sensitivity characterization parameter taking the maximum value is as follows:
I HE ＝max{I HE,δ ,I HE,A ,I HE,W }。
4. the method for characterizing hydrogen embrittlement sensitivity parameters of a hydrogen energy storage and transportation equipment material according to claim 1, which is characterized by comprising the following steps: in step S3, the hydrogen atmosphere may be replaced by a nitrogen atmosphere or an argon atmosphere, and the nitrogen or argon is purged from the atmosphere box before the sample is placed in the atmosphere box.
5. The method for characterizing hydrogen embrittlement sensitivity parameters of a hydrogen energy storage and transportation equipment material according to claim 1, which is characterized by comprising the following steps: in step S1, the design temperature T and the design pressure P of the sample are determined, the sample is installed on a slow tensile testing machine with an environment box, and after hydrogen is filled, the test environment is adjusted to the values of the design temperature T and the design pressure P.
6. The characterization method for the hydrogen embrittlement sensitivity parameter of the hydrogen energy storage and transportation equipment material is characterized by comprising the following steps of: in step S2, the loading rate v 1 The value of (2) is 0 < v 1 ＜2×10 -5 s -1 。
7. The method for characterizing hydrogen embrittlement sensitivity parameters of a hydrogen energy storage and transportation equipment material according to claim 1, which is characterized by comprising the following steps: in step S3, the dwell time is t h Equal to t s -t i 。
8. The method for characterizing hydrogen embrittlement sensitivity parameters of a hydrogen energy storage and transportation equipment material according to claim 1, which is characterized by comprising the following steps: in step S3, the loading rate v 2 The value of (2) is 0.001s -1 。
9. The method for characterizing hydrogen embrittlement sensitivity parameters of a hydrogen energy storage and transportation equipment material according to claim 1, which is characterized by comprising the following steps: the number of samples in step S3 is three or more.
10. The method for characterizing hydrogen embrittlement sensitivity parameters of a hydrogen energy storage and transportation equipment material according to claim 5, wherein the method comprises the following steps: in step S3, before the sample is placed in the environment box, nitrogen is adopted to purge the environment box, and then hydrogen is adopted to purge the environment box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311353682.XA CN117629741A (en) | 2023-10-19 | 2023-10-19 | Characterization method for hydrogen embrittlement sensitivity parameter of hydrogen energy storage and transportation equipment material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311353682.XA CN117629741A (en) | 2023-10-19 | 2023-10-19 | Characterization method for hydrogen embrittlement sensitivity parameter of hydrogen energy storage and transportation equipment material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117629741A true CN117629741A (en) | 2024-03-01 |
Family
ID=90031023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311353682.XA Pending CN117629741A (en) | 2023-10-19 | 2023-10-19 | Characterization method for hydrogen embrittlement sensitivity parameter of hydrogen energy storage and transportation equipment material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117629741A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010054494A (en) * | 2008-07-28 | 2010-03-11 | Kobe Steel Ltd | Method for evaluating hydrogen cracking resistivity of steel products |
| CN104880367A (en) * | 2015-05-26 | 2015-09-02 | 中国特种设备检测研究院 | Constant load tensile test method and test device for sample in stress sensitive environment |
| CN204988879U (en) * | 2015-08-03 | 2016-01-20 | 中国特种设备检测研究院 | Single sample constant load tensile test device suitable for sensitive environment of stress |
| JP2016057163A (en) * | 2014-09-09 | 2016-04-21 | 新日鐵住金株式会社 | Evaluation method of hydrogen embrittlement characteristic of steel material |
| US20210229221A1 (en) * | 2020-01-27 | 2021-07-29 | Saudi Arabian Oil Company | Method of testing erw pipe weld seam for susceptibility to hydrogen embrittlement |
| CN115032063A (en) * | 2022-02-23 | 2022-09-09 | 中船双瑞(洛阳)特种装备股份有限公司 | Device and method for testing hydrogen embrittlement sensitivity of material for simulating stress state of gas cylinder |
-
2023
- 2023-10-19 CN CN202311353682.XA patent/CN117629741A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010054494A (en) * | 2008-07-28 | 2010-03-11 | Kobe Steel Ltd | Method for evaluating hydrogen cracking resistivity of steel products |
| JP2016057163A (en) * | 2014-09-09 | 2016-04-21 | 新日鐵住金株式会社 | Evaluation method of hydrogen embrittlement characteristic of steel material |
| CN104880367A (en) * | 2015-05-26 | 2015-09-02 | 中国特种设备检测研究院 | Constant load tensile test method and test device for sample in stress sensitive environment |
| CN204988879U (en) * | 2015-08-03 | 2016-01-20 | 中国特种设备检测研究院 | Single sample constant load tensile test device suitable for sensitive environment of stress |
| US20210229221A1 (en) * | 2020-01-27 | 2021-07-29 | Saudi Arabian Oil Company | Method of testing erw pipe weld seam for susceptibility to hydrogen embrittlement |
| CN115032063A (en) * | 2022-02-23 | 2022-09-09 | 中船双瑞(洛阳)特种装备股份有限公司 | Device and method for testing hydrogen embrittlement sensitivity of material for simulating stress state of gas cylinder |
Non-Patent Citations (2)
| Title |
|---|
| 张福成: "《铁路轨道用钢：创新与实践》", 31 October 2022, 冶金工业出版社, pages: 510 * |
| 金立果;邢云颖;: "X80管线钢在含氢煤制气环境中的氢脆敏感性", 腐蚀与防护, no. 05, 15 May 2017 (2017-05-15) * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chu et al. | Effect of radial hydrides on the axial and hoop mechanical properties of Zircaloy-4 cladding | |
| Yao et al. | Experimental study on generalized constitutive model of hull structural plate with multi-parameter pitting corrosion | |
| CN110031312B (en) | In-situ testing method for mechanical property of rusted prestressed tendon | |
| CN108956930A (en) | A kind of method and system of the safety for the determining GIL shell containing inner defect | |
| CN117629741A (en) | Characterization method for hydrogen embrittlement sensitivity parameter of hydrogen energy storage and transportation equipment material | |
| Briscoe et al. | Internal crack symmetry phenomena during gas-induced rupture of elastomers | |
| Nishimura et al. | Fatigue behavior of medium‐density polyethylene pipes for gas distribution | |
| Mishima et al. | Effect of thermal cycling on the stress orientation and circumferential ductility in Zircaloy-2 | |
| CN117686324A (en) | Experimental test method for material hydrogen-loading degradability capable of shortening hydrogen charging time | |
| CN2606894Y (en) | Limiting expansion and contraction device for concrete | |
| CN112611656B (en) | Accurate measurement method for low-temperature elongation of aluminum alloy for aerospace | |
| Ryu et al. | Effects of iodine concentration on iodine-induced stress corrosion cracking of zircaloy-4 tube | |
| Nyquist et al. | A Study on Residual Stresses on Autofrettaged LDPE Tubing Including the Bauschinger Effect and Strain Aging | |
| Davis et al. | Fracture prediction in tough polyethylene pipes using measured craze strength | |
| Stiff et al. | Fatigue of mooring chain in air and water-results and analysis | |
| Burn et al. | Risk analysis for pipeline assets—The use of models for failure prediction in plastics pipelines | |
| Chen et al. | Review on Hydrogen-Induced Failure of Rubber O-Rings for High Pressure Hydrogen Storage Tanks | |
| CN116825257B (en) | Method and system for predicting fatigue characteristics of hydrogen storage bottle | |
| Pettersson et al. | Effect of irradiation on the strength, ductility, and defect sensitivity of fully recrystallized Zircaloy tube | |
| Takagi et al. | Stress Analysis and Sealing Performance Evaluation of Pipe Flange Connection at Elevated Temperature | |
| Woo | Statistical analysis of material damage with changing internal structure | |
| Syrett et al. | The effect of axial stress to hoop stress ratio on the susceptibility of unirradiated Zircaloy-4 to iodine stress corrosion cracking | |
| Mishima et al. | An experimental study on the burst strength of fuel cladding tubes under loss of coolant accident conditions in water cooled power reactors | |
| Austin et al. | Derivation of shakedown factors (Ks) for Type 316 and Type 321 stainless steel at high temperature | |
| CN118937041A (en) | Device and method for testing performance of material in gas environment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |